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The GCT2000 High-Precision Time Tester (the GCT2000) is a high-precision measurement device jointly developed by Guangdong Electric Power Research Institute and Shenzhen Shuanghe. Specially designed for the power industry, it uses double time reference sources of GPS and Beidou and has a built-in high-precision OCXO oscillator or a rubidium clock for timekeeping, thus guaranteeing its timing precision.




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